The invention provides an active steering driven rear axle device matched with a balanced hydro-pneumatic suspension. The active steering driven rear axle device comprises an active steering hydraulic control subunit and a hydro-pneumatic suspension hydraulic control subunit. The driving steering hydraulic control subunit comprises a steering gear, a driving oil cylinder and a centering oil cylinder, and by controlling the oil flow direction between the driving oil cylinder and the centering oil cylinder, the steering gear is used for achieving deflection and straight movement of driven rear axle wheels; the hydro-pneumatic suspension hydraulic control subunit comprises two hydro-pneumatic springs; the upper end of the hydro-pneumatic spring is connected to the frame, and the lower end is connected to the supporting shaft through a support; the upper cavity of the first hydro-pneumatic spring is communicated with the lower cavity of the second hydro-pneumatic spring and is communicated with the second energy accumulator; the lower cavity of the first hydro-pneumatic spring is communicated with the upper cavity of the second hydro-pneumatic spring and is communicated with a third energy accumulator; the balance device is used for balancing the load difference of the left side and the right side of the driven rear axle on the premise of bearing the vertical load. Through a hydraulic system and electric control, the functions of driving steering of the vehicle following the front axle, driven axle rear wheel locking and the like are achieved.
本发明提出了一种匹配平衡油气悬架主动转向从动后桥装置,包括主动转向液压控制子单元和油气悬架液压控制子单元;主动转向液压控制子单元包括转向器、主动油缸和对中油缸,通过控制主动油缸和对中油缸之间的油流向,利用转向器实现从动后桥车轮偏转和直行;油气悬架液压控制子单元包括两个油气弹簧;油气弹簧的上端连接于车架,下端通过支座连接于支承轴;且第一油气弹簧上腔与第二油气弹簧下腔连通,并与第二蓄能器连通;第一油气弹簧下腔与第二油气弹簧上腔连通,并与第三蓄能器连通;用于实现在承担垂向载荷的前提下,平衡从动后桥左右两侧的载荷差异。本发明通过“液压系统+电控”实现车辆跟随前部车桥的主动转向、从动桥后轮锁止等功能。
Driving steering driven rear axle device matched with balanced hydro-pneumatic suspension
一种匹配平衡油气悬架主动转向从动后桥装置
2024-12-13
Patent
Electronic Resource
Chinese